text: George Rosenkranz (born György Rosenkranz; 20 August 1916 – 23 June 2019) was a pioneering Hungarian-born Mexican scientist in the field of steroid chemistry, who used native Mexican plant sources as raw materials. He was born in Hungary, studied in Switzerland and emigrated to the Americas to escape the Nazis, eventually settling in Mexico.
  At Syntex corporation in Mexico City, Rosenkranz assembled a research group of organic chemists that included future leaders from around the world, such as Carl Djerassi, Luis E. Miramontes and Alejandro Zaffaroni.  Revolutionary advances in the understanding of steroid drugs and their production occurred under Dr Rosenkranzs direction. Syntex synthesized a progestin used in some of the first combined oral contraceptive pills and numerous other useful steroids. Under Rosenkranzs leadership, Syntex became "a powerful international force in the development of steroidal pharmaceuticals", and "a pioneer of biotechnology" in the San Francisco Bay Area. Rosenkranz stepped down as CEO in 1982, at the age of 65.
  In 2012, he was awarded the Biotechnology Heritage Award, in recognition of his significant contributions to the development of biotechnology through discovery, innovation, and public understanding. He turned 100 in August 2016.
  Rosenkranz was also an American Contract Bridge League (ACBL) Grand Life Master at his hobby of duplicate bridge, with more than 13,000 masterpoints and 12 NABC titles (below). He wrote or co-wrote more than 10 books on bridge.